Gaseous fuel



Patented Mar. 10, 1925.

UNITED STATES PATENT" OFFICE,

JOHN HARRIS, F CLEVELAND, OHIO, ASSIGNOR TO JAMES R. ROSE, OFEDGEWOR'IH PENNSYLVANIA.

GASEOUS FUEL- No Drawing.

To all whom it may concern:

Be it known that I, JOHN HARRIS, a citizen of the United States, residing at Cleveland in the county of Cuyahoga and State of hio, have invented certain new and useful Improvements in Gaseous Fuel, of

which the following is a full, clear, and expurposes. Its use, however, is attended with the disadvantages that it cannot be shipped in tanks, owing to its liability to dissociation under the pressures which obtain in such tanks; and it is expensive of production. i

I effect a material reduction in the cost of gaseous fuel over that of acetylene and obtain an efficient welding and cutting of metals by my gaseous fuel, which is formed by mixing acetylene and propane in the proportion ofnot, materially less than 10 parts and not materially more than parts by volume of acetylene to not materially more than 90 parts, and not materially less than 50 parts by volume of propane.

A mixture of these gases possesses the advantage that the fuel thus formed may be compressed into tanks without the dissociation of the acetylene, as thelatter will be diffused throughout the propane; the

greater the proportion of propane toacetyhas longbeen used for welding and cutting Application filed May 28, 1923. Serial No. 642,086.

lene, the higher may be the compression to which themixture is subjected without dissociation of the acetylene. i

The gaseous fuel produced by'the mixture herein set forth will give a visible reducing cone which is longer than that produced by the combustion of acetylene alone with oxygene; it reduces to a minimum the danger of the flame flashing back into the tanks, since the igniting point of the fuel'm ixture is higher than that of acetylene alone. Furthermore it produces a greater flame volume, with greater heat units, than is produced by the combustion of acetylene alone.

Finally, as has been pointed out her'einbefore, the fuel mixture is considerably more economical of production than is acetylene alone due to the materially lower cost of propane. Y

'lethe gaseous fuel described herein can be used advantageously for welding pur-' poses and-for heating large masses of metal,

it is especially useful when used for the cutting of metals, the propane constituent serving to raise the igniting point of the acetylene and to enable this result to be accomplishedby the use of the cheaper propane, in large proportion. v

, Having thus described my invention, what I claim is:

A gas especially useful for cutting. urposes consisting of a mixture of acety ene and propane in proportions of from not materially less than 10 parts to not materially more than 50 parts by volume of acetylene to from not materially greater than 90 parts to not materially less than 50 parts by volume of such propane. i

. In testimony whereof, I hereunto afiix my signature.

JOHN HARRIS, 

